1 /* 2 * Copyright 2012 Red Hat 3 * 4 * This file is subject to the terms and conditions of the GNU General 5 * Public License version 2. See the file COPYING in the main 6 * directory of this archive for more details. 7 * 8 * Authors: Matthew Garrett 9 * Dave Airlie 10 */ 11 #include <linux/module.h> 12 #include <linux/console.h> 13 #include <drm/drmP.h> 14 15 #include "mgag200_drv.h" 16 17 #include <drm/drm_pciids.h> 18 19 /* 20 * This is the generic driver code. This binds the driver to the drm core, 21 * which then performs further device association and calls our graphics init 22 * functions 23 */ 24 int mgag200_modeset = -1; 25 26 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); 27 module_param_named(modeset, mgag200_modeset, int, 0400); 28 29 static struct drm_driver driver; 30 31 static const struct pci_device_id pciidlist[] = { 32 { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A }, 33 { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B }, 34 { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV }, 35 { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB }, 36 { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH }, 37 { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER }, 38 { PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 }, 39 {0,} 40 }; 41 42 MODULE_DEVICE_TABLE(pci, pciidlist); 43 44 static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev) 45 { 46 struct apertures_struct *ap; 47 bool primary = false; 48 49 ap = alloc_apertures(1); 50 if (!ap) 51 return; 52 53 ap->ranges[0].base = pci_resource_start(pdev, 0); 54 ap->ranges[0].size = pci_resource_len(pdev, 0); 55 56 #ifdef CONFIG_X86 57 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 58 #endif 59 remove_conflicting_framebuffers(ap, "mgag200drmfb", primary); 60 kfree(ap); 61 } 62 63 64 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 65 { 66 mgag200_kick_out_firmware_fb(pdev); 67 68 return drm_get_pci_dev(pdev, ent, &driver); 69 } 70 71 static void mga_pci_remove(struct pci_dev *pdev) 72 { 73 struct drm_device *dev = pci_get_drvdata(pdev); 74 75 drm_put_dev(dev); 76 } 77 78 static const struct file_operations mgag200_driver_fops = { 79 .owner = THIS_MODULE, 80 .open = drm_open, 81 .release = drm_release, 82 .unlocked_ioctl = drm_ioctl, 83 .mmap = mgag200_mmap, 84 .poll = drm_poll, 85 #ifdef CONFIG_COMPAT 86 .compat_ioctl = drm_compat_ioctl, 87 #endif 88 .read = drm_read, 89 }; 90 91 static struct drm_driver driver = { 92 .driver_features = DRIVER_GEM | DRIVER_MODESET, 93 .load = mgag200_driver_load, 94 .unload = mgag200_driver_unload, 95 .set_busid = drm_pci_set_busid, 96 .fops = &mgag200_driver_fops, 97 .name = DRIVER_NAME, 98 .desc = DRIVER_DESC, 99 .date = DRIVER_DATE, 100 .major = DRIVER_MAJOR, 101 .minor = DRIVER_MINOR, 102 .patchlevel = DRIVER_PATCHLEVEL, 103 104 .gem_free_object = mgag200_gem_free_object, 105 .dumb_create = mgag200_dumb_create, 106 .dumb_map_offset = mgag200_dumb_mmap_offset, 107 .dumb_destroy = drm_gem_dumb_destroy, 108 }; 109 110 static struct pci_driver mgag200_pci_driver = { 111 .name = DRIVER_NAME, 112 .id_table = pciidlist, 113 .probe = mga_pci_probe, 114 .remove = mga_pci_remove, 115 }; 116 117 static int __init mgag200_init(void) 118 { 119 #ifdef CONFIG_VGA_CONSOLE 120 if (vgacon_text_force() && mgag200_modeset == -1) 121 return -EINVAL; 122 #endif 123 124 if (mgag200_modeset == 0) 125 return -EINVAL; 126 return drm_pci_init(&driver, &mgag200_pci_driver); 127 } 128 129 static void __exit mgag200_exit(void) 130 { 131 drm_pci_exit(&driver, &mgag200_pci_driver); 132 } 133 134 module_init(mgag200_init); 135 module_exit(mgag200_exit); 136 137 MODULE_AUTHOR(DRIVER_AUTHOR); 138 MODULE_DESCRIPTION(DRIVER_DESC); 139 MODULE_LICENSE("GPL"); 140